Glazing machine



sept. 8, 1925.

J. D. BOWMAN ET AL GLAZING MACHINE Filed May 2s 1924 3 Sheets-Sheet l 5ms@ NM INVENToRs `ATTORNEY Sept. 8, l 925.

J. D. BOWMAN ET AL GLAZ ING MACHINE Filed May 28,' 1924 3 Sheets-Sheet 2 INVENTORG WITNESS:

ATTORNEY s mu Q y o o Q m Sept. 8, 1925. 1,553,133

v J. D. BOWMAN 'ET Al.

GL'AZI'NG MACHINE Filed 28, 1924 5 Sheets-Sheet 3 ATTORNEY Patented Sept. 8, 1,925.

UNITED STATESA PATENT OFFICE.

JOHN D. IBOWMAN, OF SEBRING, O'HIO, AND THEODOB J. RTH, OF MOUNT CLEMENS,

- MICHIGAN.

GLAZING MACHINE.

Application led May 28, 1924. Serial No. 716,461.

` To all whom t may concern.'v

Be it known that we, JOHN D. BowMAN and THEoDoR J. ROTH, bot-h citizens of the United States, residing, respectively, at Sebring, in the county of Summit and State of Ohio, and Mount Clemens, in the county of Macomb and State of Michigan, have invented new and useful Improvements in Glazing Machines, of which the following is a specilication.

This invention relates to machinery used in making pottery, tiles, and the like and has for its object the provision of a novel device for supporting, carrying and conveying earthenware or pottery vessels, utensils or other articles in a continuous and automatic manner -between spray nozzles or in the path of a spray or jet which applies to the articles the proper liquidv which forms the requisite glaze. l I

' An important object is the provision of a machine of this character which is provided with means for effecting drying of the pottery subsequent to the application of the glazing liquid thereto, sothat by the time the articles leave the machine they will be in lry condition ready or any subsequent treatment which may be necessary.

Yet another object is the provision of a device of this character which is provided with automatically acting drain means for collecting the surplus glazing material and returning the same to the storage tank 0r container holding the liquid, the advantage being that there will be no waste of the solution or liquid.

Another object is the provision of a device of this character which includes peculiar means for holding the earthenware articles such means being replaceable by other means for holding tiles or other at articles which do not require glazing on one side.

An additional object is the provision of a machine of this character which is simple and inexpensive in manufacture, highly efiicient in use, durable in service and a general improvement in the art.

With the above and other objects and advantages in view the invention consists in the details of construction to be hereinafter more fully described and claimed and illustrated in thev accompanying drawings, in which:

Figure 1 is a side elevation of the device,

Figure 2 is a top plan view thereof,

ried at the upper' ends of legs 12 which areconnected at each side of the machine by diagonal brace bars '13 arranged and secured in crossed relation as shown. The upper and lower ends of the legs are connected by cross bars 14. This frame might be constructed of wooden bars or of angle or channel iron the latter being probably preferable though it should be understood that the material and is a detail perspective View of a the dimensions constitute mere details which do not affect the principle of the invention.

Secured upon the end portions of the longitudinal bars 11 are bearings 15 within which are journaled shafts 16 and 17 upon which are secured pairs of sprockets 18 about which are trained endless chains 19 which are in turn trained about sprockets 2() on a shaft 21 journally supported from the braces 13. The sprockets 20 are idle and v are solely for the purpose of tightening the chains, and the sprockets 18 are also idle. The shaft 17 carries a pulley 22 driven by a belt 23 trained thereabout and engaged about a pulley 24 on the shaft of a suitable motor 25. This belt and pulley arrangement might of coursev be replaced by a sprocket and chain arrangement or by a system of gearing as such mechanical elements are equivalent and capable of interchangeable use.

The chains 19 are connected at regularly spaced intervals by cross bars 26, each of which is formed with a bearing 27 through which is rotatable a spindle 28 carrying a gear 29 at its end below or inwardly of the bearing. The other ends of the spindles carry preferably resilient divergent arms 80 adapted to support articles 31 to be glazed. 1n the present instance we have shown the articles as being rather shallow earthenware dishes though it should be understood that that the liquid sprayed ilt will-coat tlie top` and bottoni sides of the articles. The present invention does not-"contemplate any sp'ecific 'sprayinghdevice as Yitis readily conceivable that different typesmight be used depending upon the notion of the individual user or the maker of the complete machine.

--In order to insure a" uniform application" of the liquid, we provide a rack' 33 which is suitablymountedupon the frame of the machine at the intermediate portion of the space between the Asidebars lland located at such a position' as'to be engaged by the gears'29 as'the carriers are moved along the machine. The moment a gear' engagesjor meshes with'this rack it is apparent that the spindle carried thereby will be rotated, carryingwith it the article to be coated so that when the article passes ,beneath the jets all portions of its surface will be treated.

In case-itis desired to coat tiles and the like instead yof articles like dishes, the spindle sections which carry the arms 30 are replacedby'flat, preferably flanged, plates 34 on which Athe, tiles are laid.

An-'important feature is the provision of a drain pan .35 which is suitably mounted'on the frame below the jet pipes and `which is )provided for" the purpose of catchingthe surplus glazing material after it passes from the pottery or other ware4 beingl treated. 'This 'drain pan'is provided withA a pipe 36 for conducting the surplus material back to the storagey tank or container not shown.

Located 'above' and extending along the intermediate prtionl ofthe frame is la4 hood A37 whichis of inverted U4shape. 'iWithin the'entranceendofthis hood are Ashields 38 suitably supported in spaced relation and having upwardly inclined top portions'39 and downwardly inclined intermediate por;- tions 40 spaced apart as shown at 41 for the passage of=the spindles carrying the ware. These shields prevent splashing and loss of the glazing liquid in an obvious manner. .The inclination of the lower shield members or. portions operates to conduct the surplus liquidto the drain pan 35.

.The remaining or rear end portion of the hood constitutes 'Aa dryer'and heating is effected by means of'a steam coil 42 which is located and suitably mounted within the frame at this rear portion of, the hood.

zln the operation'- it [will be-seenthat the articles to be glazed are placed upon the supporting spindlesasthey .come '.up at the forlward end of the machine. As the mechanism is operated,tl1e endless chains will move vfrom left to right of Figure l and will carry the articles .into and' through the shields and `hood, the articles being rotated owing to -theengagement of .the gears 29 withthe rack b'ar 33. As theypassbelow the nozzlesor jets 32, the articleswill be sprayed with the glazing liquid. 'After leaving this point the' articles are carried through the dryer so that by the time ,they reach the rear end of the machine they will be perfectly dry so that no further treatment of any kind will be necessary." The articles are then' lifted `from the spindles for'l supports by a different operator andmay be packed in receptacles or placed up'on` `a truckor the like for futuredisposition. y

`From the foregoing description and a study of the drawings it is apparentthat 'we have thus provided a'very simply constructed and consequently inexpensive continuous power driven carrier and apparatus for coating pottery, earthenware goods of all kinds' or` tiles with the usual liquid employed for giv` ing the desired glazed surface ornish. The device is bound to be 'a great time and labor saver 'and owing to the fewness ofthe to get out of order.

While we have'shown and described the preferred embodiment ofthe invention it is ofcourse to be' understood that :we reserve the arts it is apparent that there is lpractically ittle= cles to bel glazed, shiel s carried bythe frame between ywhich the articles pass, means entering between the shields forspraying glazing liquid onto' the articles, a Vhood through which thearticles pass 'subsequent to spraying, and heating means within said hood whereby to effect drying of the articles. In testimony whereof' we ai-LEX our signatures.

JOHN D. BowMAN.'` THEoDon J.' RoTH. 

